Salim AL-Kutubi H, Razzaq AL-Saiq I. On Student Comprehension For There Year Courses In Mathematics Department. UTJsci [Internet]. 2009 Jan. 12 [cited 2025 Apr. 11];1(3):64-103. Available from: http://mail.jsci.utq.edu.iq/index.php/main/article/view/187